of the 71, 24 are in critical condition. boston medical center has 19 patients. the hospital said the majority of them will require further surgery. brigham and women's hospital has 15 patients. five critical. mass general has 12 patients, eight critical. beth israel, boston children's has two, and at tops, ten patients. thankfully none with life threatening injuries. investigators have still closed down a crime scene that measures about one square mile. it's a roughly triangular square mile, but that's how much ground they are pouring over. janet napolitano, the fbi director, robert muller and nsa director, keith alexander, briefed members of the house and senate agencies this afternoon. in terms of what bostonians are doing, there have been vigils and public events. the largest taking place at boston commons.